: the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, oscillation, or …

A phase is one of the forms in which matter can exist, such as solid, liquid, or a gas.

1. any distinct or characteristic period or stage in a sequence of events or chain of development: there were two phases to the resolution; his immaturity was a passing phase.

Apr 13, 2026 · Noun phase (plural phases) A distinguishable part of a sequence or cycle occurring over time.

Mar 5, 2026 · A phase is a distinct stage or state within a larger cycle or system. The word shows up across science, medicine, and everyday life, and its specific meaning depends on context.

Look up Phase, phase, or phases in Wiktionary, the free dictionary.

A phase is a particular period of time, like someone whose "teenage rebellion" phase lasts well into her thirties. The word phase can mean a stage in a person’s development or a step in a process, such as …

A phase is a particular stage in a process or in the gradual development of something.

The project will be done in three phases. He's in the final phase of treatment now. The building project marks a new phase in the town's development. These poems are from an early phase [= stage] in …

A phase is a particular period of time, like someone whose "teenage rebellion" phase lasts well into her thirties. The word phase can mean a stage in a person’s development or a step in a process, such as …